Concrete elevating and distributing apparatus



June 24, 1930.

J. E. BUSHNELL CONCRETE ELEVATING AND DISTRIBUTING APPARATUS 2 Sheets-Sheet 1 Filed Jan 4, 1928 June 24, 1930. J. E. BUSHNELL 1,767,431

CONCRETE ELEVATINCT AND DISTRIBUTING APPARATUS Filed Jan. 1928 2 Sheets-Sheet 2 distance laterally of the mast and is pro vided, at its top on each side of the mast, with two inlets or receiving spouts 21, 22 for initially receiving the charges of the buckets. Each inlet portion or spout carries a bucket switch or trip 23, which are rigidly mounted on that side of the mouth of each spout which is adjacent the mast, see Fig. 2. Saidi, 25 having rollers 26 bearing on the flanges of the channeled rails 12 and 13. A suitai ble hoist cable 27 for said carriagehas one end fixed at the top of the mast as at 28, and runs down through sheave 29, on carriage 25, up to the top of the mast through sheave 30 and thence to a suitable power actuated winding drum (not shown). It is apparent from this arrangement that the mechanical advantage secured enables thesame amount of power applied in a single bucket plant,

e: an

to elevate the two bucket carriage. Inspection of the drawings will disclose four pairs of'rollers, 26, the rollers of each pair being positioned 90 apart for bearing on two sides of rails 12 and'13'. This construction affords a sturdy truck and a reliable means for maintaining the carriage 25in proper alignment with the mast at all times; The carriage 25 comprises a bail 31 on which are mounted suitable cross beams 32 connected by uprights 33 defining an offset bucket carrying frame, As seen in Fig. 2 said frame defines three panels, one in the centersubtantially the width of themast and one on either side thereof, projecting laterally beyond the limits of themast.v In each ofthese outer panelsis pivotally mounted 121. bucket 34 for hoisting the concrete.

' The buckets are of thatcommon type which is normally:

counterbalanced on the side of their axes opposite rollers 35-so that the buckets themselves, as well as 'the' loaded buckets, are normally stable on the'carriage 25 being aided in this by chain's 37, (see full line showing of bucket in Figfl). These two buckets are of equal capacity and are normally maintained, in upright position;

Rollers 35, are provided on the nose of each bucket, adjacent the mast, and are adapted to ride in thetrips 23 as hereinafter ex;

plained. l or In operation, the hopper16, spouts 21, 22 and trips 23 are adjusted. at the desired elevation, as seen in .full lines in Fig. 1.

3 The buckets 34 arefilled at the bottom of the mast, preferably with an equal amount of Fig. 1, to clear'the mastwhen the concrete. The power driven cable 27 hoists the carriage and buckets, the rollers 26 bearing on rails 12 and 13 to guide same and prevent lateral movement of the carriage and buckets with respect to themast. As the buckets approach spouts 21, 22, the rollers 35thereon are caught in switches or trips 23 in which they ride. -Upon further vertical movement of :the carriage. and buckets, the curved ends of switches 23, by means of rollers 35, pull buckets 34 from their panels," further ascent of the carriage 25 raising the pivots of the buckets above the'now downwardly. directed discharge portions thereof. The buckets, at this point, are in discharging position, as seen in dotted lines in Fig. 1, being held by the chains or cables 37 secured to the beams 32 and the buckets. As clearly apparent, the switches 23 are disposed in the path of the ascending rollers 35, while buckets 34 when dumped are directly over the inlets or spouts 21, 22 of hopper 16, i i

The foregoing detailed description discloses the equalization 'of the load about the mast, particular attention being called to the fact that the momentum of the mass, as it leaves the buckets andstrikes the spouts, is experienced alike on directly opposite sides of the mast and'in the axial plane thereof. This centralization of the forces which the mast must withstand, eliminates or reduces to 'a' minimum the severe vibration and torque set up therein.

It is apparent thatupon lowering the car-.

riage '25, the bucket pivots are lowered, drawing the buckets out of switches 23, back into the'panels to erect position in the carriage for receiving another charge. The modifie'chembodi ment in Figs. 46 differs from the preferred form in that the buckets discharge away from the mast. In this form the hopper or bin 16 also has two inlets or spouts 40, 41, embracing the mast 10, but extending outwardly therefrom at an angle, their ends, however,being parallel to the mast As seen in Fig. 5, these'spouts carryswitches 43positioned in alignment with rollers '44 of the buckets, and are pivotally mounted for' swinging out of the path of the bucket as in the preferred form. The hopper 16' is vertically adjustable on the mast as previouslydescribed. A carriage 45, having 'a' suitable hoisting cable 46 is also provided, rollers 47 as aforementioned bearing on rails 12 and 13 of the mast. An offset frame 48 mounted on the carriage supports the two pivotally mounted buckets '49, of the counterbalanced type described in the preferred form, said buckets, however, dumping'away fromreach other, instead of in parallel planes as in the preferred form. The operation and advantages of this form will'be apparent from reference to the embodiment formerly described.

, memes I claim: V

l. The combination in apparatus of the character described of a rigid upright mast, a hopper for receiving material for distribution, pivotally mounted means for elevating material arranged to be elevated and lowered on said mast, and mechanism for elevating and lowering said means, said hopper having portions on two sides of said mast for receiving material from said means.

2. In apparatus of the character described, in combination, a rigid upright mast, a hop per having portions on two sides of the mast for receiving material for distribution, means comprising a plurality of buckets for elevating material arranged to be elevated and lowered on said mast and mechanism for elevating and lowering said means, said means positioned for concurrently discharging the contents of said buckets into said Portions.

3. In apparatus of the character described, in combination, a rigid upright mast, ,a-hopper for receiving material for distribution, a vertically movable carriage, a plurality of buckets pivotally secured thereto for elevating material arranged to be elevated and lowered on said mast, mechanism for elevating and lowering said carriage and buckets, said hopper having a. receiving portion for each bucket, the discharge portion of each bucket and its hopper receiving portion being positioned inwardly with respect to 'front and rear faces of the mast.

l. The combination in apparatus of the character described of a rigid upright mast,

a vertically adjustable hopper for receiving 1 material for distribution having laterally extending receiving portions embracing said mast, a twin bucket hoist disposed 0ppositely to said hopper on said mast, mechanism for raising and lowering said hoist,

said buckets discharging their contents into the receiving portions of said hopper about said mast. 1

5. The combination in apparatus of the character described, a rigid upright 'mast, means on opposed portions of said mast for receiving material for distribution, the inlets to said means positioned in the axial plane of said mast, twin buckets for elevating material arranged to be elevated and lowered on said mast, means for raising and lowering said buckets, means for simulta- I v neously discharging saidbuckets, said buckets positioned for discharging their *con tents into said inlets wherebyv the impact of discharge is evenly distributed on opposed portions of said mast and in the axial plane thereof. e

6. The combination in apparatus of the character described, a rigid upright mast, means on said mast for receiving material for distribution, inlets to said meansarranged on opposed portions of said mast and positioned in the axial; plane I of said mast, twin buckets for elevating material; arranged tobe elevated and lowered on said mast, means for raising. and. lowering said buckets, means; for simultaneously discharge ing saidbuckets, said buckets positioned for buckets f'o'r elevating material arranged to be elevated andlowered in vertical planes passing through said branches, means for elevating and. lowering said buckets and ineansfor discharging said buckets whereby the Contents of each; bucket in emptying into said branches pass around said'mast.

8. The combination in apparatus of the" character described, of ajrigidupright mast, a vertically movable carriage mounted thereon having portions extending laterally beyond the limits of said mast on two. sides thereof, pivoted buckets mounted in said portions, hoisting mechanism for: said carriage "andl buckets, a vertically adjustable, hopper mounted; on said. mast having trip means for said 'buckets, said buckets positioned for discharging their contentsaway from said carriage and 1 towards said mast.

9.'The combination in apparatus. of the character described of arigid upright mast, a hopper hav ng laterally extending por- V for vertical adjustment on said mast, and

tripping means mounted on said hopper and movable to positions in and out of the path of said first named means.

tions for receiving material for distribution, said portions extending along the mast 11. Inapparatus of the character described, the combination of an upright mast,

a hopper for receiving material for distribu- 'tion, a vertically movable frame, a hoist ing movement of said'buck et in two directions. j J

12. In a device of the character described, a rigid upright mast, an adjustable hopper thereon having laterally extending receiving portions alongtwo sides of said mast for receiving material for distribution, said receiving portions being pivotally mounted, a plurality of bucketsmounted for travel along said mast, and trip means for said buckets mounted on said pivoted receiving portions".

13. Concrete distributing apparatus comprising a mast, a hopper against one face of said mast, a hoist carriage against the opposite face of the mast, concrete recep tacles on said carriageeach having a discharge portion on opposite faces of said mast, said hopper having inlets on said lastnamed opposite faces, said inlets and discharge portions being substantially ali ned substantially intermediate of said firstnamed faces. I

14.111 apparatus of the character described, the combination of an upright mast, a hopper for receiving material for distribution, a vertically movable frame, a hoist bucket pivotally secured thereto for elevating material arranged to be elevated and lowered on said mast, mechanism for elevating and lowering said frame and bucket, means adjacent said hopper for ilting' said bucket and a single chain associated with said frame and bucket for limiting the tilting movement of said bucket in two directions.

Vitness my hand this ber, 1927, county ofMiddleseX, State of New Jersey. I

JAMES E. BUSHNELL.

28th day of Octo- 

